Based on the users' reviews, here are three pros and three cons of the Charango Tuner Pro app: **Pros:** 1. Accurate tuning: Users rave about the app's ability to accurately tune their charangos to the correct pitch. 2. Easy to use: Many reviewers praise the app's user-friendly interface, making it simple to navigate and use. 3. High-quality sound: Users appreciate the high-quality audio samples and realistic sounds produced by the app. **Cons:** 1. Limited instrument selection: Some users wish the app would support tuning for other instruments beyond the charango. 2. No MIDI output: A few reviewers would like the option to export MIDI files for use with other music software. 3. No editing features: Some users find the app limited due to the lack of editing features, such as the ability to adjust settings or customize sounds.